(19)
(11) EP 0 372 713 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.03.1991 Bulletin 1991/12

(43) Date of publication A2:
13.06.1990 Bulletin 1990/24

(21) Application number: 89311384.5

(22) Date of filing: 02.11.1989
(51) International Patent Classification (IPC)5: F02M 59/36, F02M 41/14
(84) Designated Contracting States:
DE ES FR GB IT

(30) Priority: 02.12.1988 GB 8828159

(71) Applicant: LUCAS INDUSTRIES PUBLIC LIMITED COMPANY
Solihull, West Midlands B91 3TX (GB)

(72) Inventor:
  • Nicol, Stuart William
    Monks Drive London W3 0EF (GB)

(74) Representative: Thompson, George Michael et al
MARKS & CLERK, Alpha Tower, Suffolk Street Queensway
Birmingham B1 1TT
Birmingham B1 1TT (GB)


(56) References cited: : 
   
       


    (54) Fuel injection pump


    (57) A fuel injection pump for supplying fuel to an internal combustion engine includes a bore (13) containing a cam actuated pumping plunger (9). The bore is connected to an outlet (16) during inward movement of the plunger and a spill valve including a spill valve member (19, 19A), is operable to spill fuel from the bore to prevent delivery of fuel to the associated engine. The spill valve member includes a piston portion (22) slidable in a cylinder (17, 17A) to which fuel under pressure from the bore can be admitted to move the spill valve member to the open position against the action of a spring (21, 21A). The admission of fuel under pressure to the cylinder can be effected by an electromagnetically operable valve (22A), or by the use of a control sleeve (30), recesses on the internal surface of which in conjunction with porting in a rotary part of the pump, form a control valve.







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